body {
    background-image: url(../../image/banner.jpg);
    /* 设置背景图片不重复 */
    background-repeat: no-repeat;
    /* 设置背景图片居中 */
    background-position: center;
}

h2 {
    font-size: 30px !important;
    font-weight: 700 !important;
    text-align: center;
}

.box {
    margin: 100px auto;
    text-align: center;
    font-size: 20px;
}

input {
    border: 2px solid rgb(161, 146, 146);
    margin: 20px 0;
    height: 30px;
    border-radius: 20px 20px 20px 20px;
}

#btnreg {
    border: 2px solid rgb(134, 134, 134);
    border-radius: 10px 10px 10px 10px;
    font-size: 20px;
    margin-top: 30px;
}

.pwd {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

a {
    border: 1px solid black;
    background-color: aliceblue;
    border-radius: 10px 10px 10px 10px;
}